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Plunk vs Postal
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Plunk | Postal |
|---|---|---|
| Language | TypeScript | Ruby |
| Licence | AGPL-3.0 | MIT |
| Stars | 5.5k | 17k |
| Latest | v0.15.0 | 3.3.7 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 37 days between releases | about 75 days between releases |
| Active contributors | 12 commit authors on the default branch in the last 90 days | 2 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace SendGrid. Alternatives to SendGrid →
PartialPlunkTransactional email over an HTTP API next to campaigns and automations, sent through Amazon SES.
Full replacementPostalSends and receives mail over SMTP and an HTTP API, with delivery tracking and webhooks.
Plunk
- v0.15.02026-09-20Add ability to snooze contacts instead of unsubscribing (787d200)
- v0.14.02026-08-17Add additional card verification in worker (33cc815)
- v0.13.02026-08-09add email body cleanup job to remove old email content after 90 days (cef8ce0)
- v0.12.02026-06-22add composite index on campaignId and status for efficient campaign completion checks (4b752a5), closes #400
- v0.11.02026-05-13Ability to change subscription status in workflows (fadc19d)
Plunk
✓ signed The latest release, v0.15.0, carries a signature GitHub verified.
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Postal
✓ signed The latest release, 3.3.7, carries a signature GitHub verified.
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